Question

When 3.2 g of ammonium chloride is dissolved in 75 g of water, the temperature of the solution decreases from 22.8°C to 20.1°C. What is the energy of dissolution of NH4Cl per mole? (The molecular mass of NH4Cl = 53.49 g/mol, and the specific heat of water = 4.18 J/g°C.)

A. 125 kJ/mol
B. 14.8 kJ/mol
C. 0.88 kJ/mol
D. 390 kJ/mol

Answer 1

I got 601.92 but it's wrong... @Abhisar

Answer 2

@asib1214

Answer 3

@Somy

Answer 4

somy will help you when she is online

Answer 5

^talk about ironic

Answer 6

@Somy @nincompoop

Answer 7

@Somy please help i really need help on this and a few more